/Engine/Plugins/Experimental/PCG/Source/PCG/Public/Metadata/PCGMetadataAttributeTraits.h
Strings.
template<> struct MetadataTraits< FString > : public [PCG::Private::DefaultCompareTraits< FString >](API\Plugins\PCG\Metadata\DefaultCompareTraits), public [PCG::Private::DefaultStringTraits< FString >](API\Plugins\PCG\Metadata\DefaultStringTraits)